US Patent 9913537 Folding chair

A folding chair comprising a seat and a backrest carried by a folding structure, wherein the folding structure comprises a first structure defining a pair of front legs and a second structure defining a pair of rear legs, articulated to each other about a transverse axis by means of a pair of joints and movable relative to one another between an open position and a closed position, wherein the first structure comprises two first side elements and the second structure comprises two second side elements and wherein each of said joints comprises a first half-joint fixed to a respective first side element and a second half-joint fixed to a respective second side element, wherein the first and the second half-joints are rotatable relative to one another about said transverse axis, wherein the first structure comprises a pair of rods mounted within respective first side elements and movable between a raised position and a lowered position.